Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach
As only a very limited number of earthquake strong ground motion records are available in southwest Western Australia (SWWA), it is difficult to derive a reliable and unbiased strong ground motion attenuation model based on these data. To overcome this, in this study a combined approach is used to s...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Taylor & Francis Ltd.
2008
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| Online Access: | http://hdl.handle.net/20.500.11937/39765 |
| _version_ | 1848755681188904960 |
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| author | Liang, J. Hao, Hong Gaull, B. Sinadinovski, C. |
| author_facet | Liang, J. Hao, Hong Gaull, B. Sinadinovski, C. |
| author_sort | Liang, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | As only a very limited number of earthquake strong ground motion records are available in southwest Western Australia (SWWA), it is difficult to derive a reliable and unbiased strong ground motion attenuation model based on these data. To overcome this, in this study a combined approach is used to simulate ground motions. First, the stochastic approach is used to simulate ground motion time histories at various epicentral distances from small earthquake events. Then, the Green's function method, with the stochastically simulated time histories as input, is used to generate large event ground motion time histories. Comparing the Fourier spectra of the simulated motions with the recorded motions of a ML6.2 event in Cadoux in June 1979 and a ML5.5 event in Meckering in January 1990, provides good evidence in support of this method. This approach is then used to simulate a series of ground motion time histories from earthquakes of varying magnitudes and distances. From the regression analyses of these simulated data, the attenuation relations of peak ground acceleration (PGA), peak ground velocity (PGV), and response spectrum of ground motions on rock site in SWWA are derived. |
| first_indexed | 2025-11-14T09:00:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-39765 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:00:10Z |
| publishDate | 2008 |
| publisher | Taylor & Francis Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-397652017-02-28T01:45:41Z Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach Liang, J. Hao, Hong Gaull, B. Sinadinovski, C. As only a very limited number of earthquake strong ground motion records are available in southwest Western Australia (SWWA), it is difficult to derive a reliable and unbiased strong ground motion attenuation model based on these data. To overcome this, in this study a combined approach is used to simulate ground motions. First, the stochastic approach is used to simulate ground motion time histories at various epicentral distances from small earthquake events. Then, the Green's function method, with the stochastically simulated time histories as input, is used to generate large event ground motion time histories. Comparing the Fourier spectra of the simulated motions with the recorded motions of a ML6.2 event in Cadoux in June 1979 and a ML5.5 event in Meckering in January 1990, provides good evidence in support of this method. This approach is then used to simulate a series of ground motion time histories from earthquakes of varying magnitudes and distances. From the regression analyses of these simulated data, the attenuation relations of peak ground acceleration (PGA), peak ground velocity (PGV), and response spectrum of ground motions on rock site in SWWA are derived. 2008 Journal Article http://hdl.handle.net/20.500.11937/39765 Taylor & Francis Ltd. restricted |
| spellingShingle | Liang, J. Hao, Hong Gaull, B. Sinadinovski, C. Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach |
| title | Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach |
| title_full | Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach |
| title_fullStr | Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach |
| title_full_unstemmed | Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach |
| title_short | Estimation of strong ground motions in southwest Western Australia with a combined green's function and stochastic approach |
| title_sort | estimation of strong ground motions in southwest western australia with a combined green's function and stochastic approach |
| url | http://hdl.handle.net/20.500.11937/39765 |